Adaptive radio reception aerial system - has main reflector aerial and several reference radiators producing minimum sensitivity in noise source directions

摘要: The aerial system minimises noise interference signals originating from discrete directions. It consists of a number radiators arranged in group, and correlation an feed-back network for each radiator direction, controlling amplitudes phases the group. These networks are provided between individual signal receiving on one hand, output combining other. One is sharply focussed scanning reflector aerial. other reference whose corresponds to that suppressable sources. adaptive feedback correlates only levels secondary lobes with level or several aerials so resultant lobe characteristic modified, minimum appears direction(s)